CN113777950B - Simulation linkage verification system and method for target controller in TACS system - Google Patents
Simulation linkage verification system and method for target controller in TACS system Download PDFInfo
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B17/00—Systems involving the use of models or simulators of said systems
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Abstract
The invention relates to a simulation linkage verification system and a simulation linkage verification method of a target controller in a TACS system, wherein the system comprises a trackside control unit, a trackside target control unit and a trackside simulation unit which are sequentially connected; the trackside control unit comprises a trackside resource controller WRC, a safety computer platform CVC-200T and a CVC type simulation interlocking CVC-CITB, the trackside target unit comprises a target controller OC and a target controller simulation OC Sim, and the trackside simulation unit comprises a Line simulator Line Sim. Compared with the prior art, the invention has the advantages of resource conservation, strong applicability, controllable cost and the like.
Description
Technical Field
The invention relates to the field of rail transit, in particular to a simulation linkage verification system and method of a target controller in a TACS system.
Background
The TACS system of the rail transit vehicle communication system is the development direction of the rail transit train control system of the next generation after the CBTC mobile communication signal system. The TACS train control system based on train communication has the biggest advantage of flexibly managing the trackside resources, such as the occupied resources of the track, the turnout resources and the like on the basis of ensuring the automatic and autonomous running of the train. In the flexible management process of the trackside resources, the TACS adopts a target controller in an all-electronic mode to control the trackside resources, has the characteristics of rapid and safe control and feedback, and can meet the flexible control and state acquisition of the trackside resources by the TACS system.
Because TACS system belongs to the emerging leading edge technology of rail traffic industry, the target controller for controlling the trackside resources needs to be tested in a large amount in an environment simulating the real operation of the train as much as possible so as to verify the functional stability, deployment efficiency and operation safety of the device in the practical application. At present, a verification mode commonly adopted in the industry is a test line for building a train-to-train communication TACS system, and the functional correctness and stability of the target controller are tested by running the train on a real track. Although the verification mode can truly simulate the calculation and response of the target controller to the vehicle communication TACS system calling the trackside resources in the operation, the verification mode is limited by the high construction cost of a test line, and can only simulate the track environment with a limited length, simulate the interaction with the target controller in the normal operation scene of a train, and cannot simulate the complex scene and the emergency scene on the whole positive line. The method for verifying the functional correctness and stability of the target controller in the train communication TACS system by using the mode of building the test line has the following specific problems:
1) The construction and maintenance cost is high, and the occupied resources are huge; the test line is similar to a small track positive line, and various aspects such as civil engineering, power supply, signals and the like are considered and planned in the early stage of construction, so that a large amount of manpower, material resources and financial resources are occupied in the construction process, the period is long, the cost is high, the space occupation is huge, and a large amount of maintenance cost is still required to be input after the construction is finished so as to ensure the stability of the whole verification environment;
2) It is difficult to fully simulate the computation and response of the target controller to the trackside resource call under various complex and emergency scenarios in the actual operating environment. Limited by the length of the test line, the normal use and operation of the train can be simulated only in the environment, and the target controller is more required to ensure the correctness and stability of the functions in various complex scenes and emergency scenes;
3) Changing the verification environment configuration requires re-burning the target controller board card, which is time-consuming and labor-consuming. Because the target controller data are stored in various boards of the target controller in an early burning mode, when different test cases are verified, the boards are required to be disassembled and the data are burned again, and at the moment, the whole verification system cannot continue to normally operate, so that the verification efficiency is greatly influenced;
4) The expansion of the external interface is insufficient. Because the test line adopts a whole set of real track equipment, the establishment of the whole verification environment is basically determined at the beginning of construction, and when external equipment or a subsystem is required to be connected in the actual verification process, the test line is limited by the inadequacy of equipment interfaces, the problem that the external interfaces are difficult to construct is often caused, and the problem that the whole test environment is influenced for a long time is caused.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a simulation joint verification system and method for a target controller in a TACS system.
The aim of the invention can be achieved by the following technical scheme:
according to a first aspect of the present invention, there is provided a simulation linkage verification system of a target controller in a TACS system, the system comprising a trackside control unit, a trackside target control unit, and a trackside simulation unit connected in sequence; the trackside control unit comprises a trackside resource controller WRC, a safety computer platform CVC-200T and a CVC type simulation interlocking CVC-CITB, the trackside target unit comprises a target controller OC and a target controller simulation OC Sim, and the trackside simulation unit comprises a Line simulator Line Sim;
the target controller OC is respectively connected with the trackside resource controller WRC and the safety computer platform CVC-200T, and the target controller simulation OC Sim is respectively connected with the CVC type simulation interlocking CVC-CITB and the trackside resource controller WRC; the Line simulator Line Sim is connected with the target controller OC through the conversion module, and the Line simulator Line Sim is connected with the target controller simulation OC Sim.
Preferably, the conversion module comprises a relay box and a programmable logic controller; the target controller OC, the relay box, the programmable logic controller and the Line simulator Line Sim are sequentially connected;
wherein the programmable logic controller receives a 24V level control signal from the target controller OC via the relay box and transmits a response signal of the Line simulator Line Sim to the target controller OC.
Preferably, the system further comprises a verification manager with a device state monitoring function, a trackside resource control function and a system state information recording and viewing function; the verification manager is respectively connected with the target controller OC and the Line simulator Line Sim;
and the human-computer interaction interface of the verification manager is used for monitoring the state of the simulated trackside resources in the Line Sim in real time, and sending control code bits through the target controller simulation OC Sim to realize the dispatching and control of the simulated trackside resources.
Preferably, the trackside resource controller WRC respectively performs data interaction with the target controller OC and the target controller simulation OC Sim through FSFB/2 and RSSP-I protocols;
the trackside resource controller WRC issues trackside resource allocation instructions to the target controller OC and the target controller simulation OC Sim, and monitors and collects corresponding trackside equipment states in real time through the target controller OC and the target controller simulation OC Sim.
Preferably, the safety computer platform CVC-200T replaces a track-side resource controller WRC to schedule and distribute track-side resources under abnormal conditions of a vehicle-to-vehicle communication mode, and realizes the functions of controlling turnout, handling routes and lighting a signal machine in a backup mode.
Preferably, the CVC type simulation interlocking CVC-CITB is a CITB type CVC simulation interlocking lower computer platform, internal logic of the safety computer platform CVC-200T is written into a simulation program, and the function of dispatching and distributing trackside resources by replacing a trackside resource controller WRC in a backup mode is realized.
Preferably, the target controller OC receives a scheduling instruction sent by the trackside resource controller WRC or the safety computer platform CVC-200T, and controls the trackside equipment state in the form of output control code bits through interlocking internal Boolean logic operation; and meanwhile, the state code bits corresponding to the trackside equipment are collected and sent to a trackside resource controller WRC or a secure computer platform CVC-200T after internal logic operation.
Preferably, the target controller simulates OC Sim as a simulation device of the target controller OC, and the control of the trackside equipment and the acquisition of code bits of related equipment are realized by writing logic in a simulation program in the real target controller, so that reasonable allocation and safety and stability of trackside resources are ensured.
Preferably, the Line simulator Line Sim simulates the state and related logic of the trackside resource, receives an object control command sent by the target controller OC or the target controller simulation OC Sim, realizes code bit control of the simulated trackside equipment, and feeds back the trackside equipment state to the target controller OC or the target controller simulation OC Sim in real time.
According to a second aspect of the present invention, there is provided a method for a simulated linkage verification system of a target controller in a TACS system, the method comprising the steps of:
step 1: starting and initializing a trackside control unit, a trackside target control unit and a trackside simulation unit in sequence from the top layer of the verification system;
step 2: establishing a TACS mode of vehicle communication, and ensuring normal communication among subsystems;
step 3: in the vehicle mode, resources are distributed to a target controller OC and a target controller simulation OC Sim through a trackside resource controller WRC;
step 4: after receiving the track side resource allocation instruction from the track side resource controller WRC, the target controller OC and the target controller simulation OC Sim calculate a control instruction corresponding to the track side resource object through the internal processor, and send the instruction to the Line Sim;
step 5: the Line Sim of the Line simulator responds to the control instruction of the trackside resource in the TACS mode, and changes the code bit corresponding to the simulated trackside resource;
step 6: in the backup mode, the resource allocation role is changed from a trackside resource controller WRC to a safety computer platform CVC-200T and a CVC type simulation interlocking CVC-CITB, and the steps of resource allocation, object control and equipment response are kept consistent with the car mode.
Compared with the prior art, the invention has the following advantages:
1) The test system has low construction cost and can greatly save time and space
Compared with the method of building a real test line to perform the sports car test, the technical scheme greatly saves the cost of manpower and material resources by simulating the trackside resources and the target controllers by the simulation equipment, can build a target controller simulation linkage verification platform of a whole car communication TACS train control system in a short time, and greatly saves the space occupation caused by building the real track equipment;
2) The test coverage is wide, and the test requirements of different scales can be met
Compared with the situation that the real trackside equipment and the real target controller are limited by the fund input condition and the space occupation degree, the scheme of simulating the trackside resource and the target controller is adopted, so that the configuration file of a simulation program can be only changed, the omnibearing simulation of different-scale lines is realized, the test coverage is wider, and the simulation of various complex scenes and emergency scenes in the real operation environment is more comprehensive and real;
3) The system is simple to operate and low in maintenance cost
Because the scheme adopts a simulation program to replace a large number of real track equipment, a tester does not need to expend a great deal of energy to learn the operation modes and maintenance methods of various strong and weak current devices, the test efficiency is greatly improved, the potential safety hazard caused by improper operation in the test process can be avoided as much as possible, and the system maintenance cost is reduced;
4) The system has strong expansibility and flexibility
Compared with a real track and a target controller testing device, the external interface is difficult to increase, and the scheme of simulating the trackside resources and the target controller can greatly improve the compatibility and the flexibility of the whole set of testing system. By simply adding a new external interface for the simulation program, the system can realize the butt joint with an external system without considering the reconstruction of a hardware level;
5) The simulation verification method and device are currently applied to the Shenzhen No. 20 line which is a global first set of TACS demonstration line, and perform indoor prepositive verification and verification on functions and scenes of the Shenzhen No. 20 line, so that the function and the scenes are guaranteed to be opened at a time with high quality.
Drawings
Fig. 1 is a schematic structural diagram of a target controller simulation linkage verification system of a TACS train control system of the present invention.
Fig. 2 is a data flow chart of a target controller simulation linkage verification method of the TACS train control system of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
Example 1
As shown in FIG. 1, the figure shows a target controller simulation linkage verification system of a complete vehicle-to-vehicle communication TACS train control system. The device uses simulation equipment to replace a real trackside device, and forms a whole set of closed loop verification system with a train-to-train communication TACS train control system, so that no positive line equipment is occupied, a simulation running test of the whole line can be carried out in a laboratory to realize trackside linkage, and the device comprises the following parts of devices and related functions:
1) Trackside resource controller a:
the controller is a trackside resource management core device in a train control system of the train communication TACS, and is responsible for trackside resource calling and distribution and trackside equipment state acquisition in a train communication mode. Under the Ethernet environment, the system performs data interaction with a target controller d and a target controller simulation g under FSFB/2 and RSSP-I protocols based on railway signal safety communication, issues a trackside resource allocation instruction to the target controller and the simulation thereof, and monitors and collects corresponding trackside equipment states in real time through the system.
2) Secure computer platform b:
the platform is an all-electronic interlocking lower computer platform and is used for replacing a track-side resource controller WRC to schedule and distribute track-side resources under abnormal conditions of a vehicle-to-vehicle communication mode, so that functions of controlling turnout, handling routes, lighting a signal machine and the like under a backup mode are realized. Under the Ethernet environment, the system performs data interaction with a target controller d and a target controller simulation g under FSFB/2 and RSSP-I protocols based on railway signal safety communication, issues a trackside resource allocation instruction to the full-electronic interlocking and a simulator thereof, and monitors and collects corresponding trackside equipment states in real time through the system.
3) CVC simulation interlocking c:
the platform is a CVC simulation interlocking lower computer platform in CITB system. By writing the internal logic of the secure computer platform b into the simulation program, the platform can also realize the functions of dispatching and distributing the trackside resources instead of the trackside resource controller WRC in the backup mode. Compared with the safety computer platform b, the method has the core advantages that the whole set of test system equipment is simplified, the convenience for external interfaces is increased, the expansibility of the system is greatly improved, and the maintenance cost is further reduced by adopting a simulation program mode.
4) Target controller d
The device is a core unit for controlling the trackside equipment and collecting the state in the train-car communication TACS train control system. The method comprises the steps of receiving a scheduling instruction sent by a trackside resource scheduling device WRC or CVC, and controlling states of trackside equipment such as a switch machine, a signal lamp, a shielding door, a track and the like in a mode of outputting control code bits through interlocking internal Boolean logic operation; meanwhile, the system also collects the status code bits corresponding to the trackside equipment and sends the status code bits to the trackside resource scheduling device after internal logic operation. The target controller d ensures reasonable distribution, safety and stability of all the trackside equipment through the operation functions.
5) Relay box e:
the device is a relay box formed by combining a plurality of relays in a concentrated way. Because the level signals output and received by each board card of the target controller are high-voltage level signals of 380V, 220V, 110V and the like, and the level signals which can be sent and received by the programmable logic controller PLC are low-voltage level signals of 24V, the level signals need to be transited through a relay so as to better simulate the electrical properties of the real equipment beside the track.
6) Programmable logic controller f:
the device is a Q-series programmable logic controller PLC, and comprises a Q-series PLC CPU and a Q-series I/O module. The PLC CPU has the function of establishing MELSEC protocol communication with the target equipment line simulator h through the Ethernet so as to perform the data reading and writing functions of the I/O module; the I/O module functions to receive a 24V level control signal from the target controller d via the relay box e and transmit a response signal of the line simulator h to the target controller d. The device has the core function of realizing conversion between the electric signals and the network signals, thereby establishing connection between hardware devices such as a trackside controller, a target controller and the like and software such as a trackside device simulator and the like, and realizing replacement of the trackside real devices by the simulator.
7) Target controller simulation g:
the device is a simulation device of the target controller d, and can realize control of the trackside equipment and acquisition of code bits of related equipment by writing logic in the real target controller into a simulation program, so that reasonable allocation and safety and stability of trackside resources are ensured. The simulator has the core advantages that compared with the mode that all real equipment is used, namely the target controller-trackside equipment on the track is on the line, and the mode that the current laboratory adopts the target controller-relay box-PLC-trackside equipment to simulate the mode that the simulation program replaces the trackside real equipment, the mode that the target controller is adopted by the target controller simulation g simulates the trackside equipment, the complete set of target controller test environment can be integrated to the greatest extent, the equipment cost is reduced, and the occupied space is saved. Meanwhile, compared with the communication modes of the network-strong current and the network-strong current-weak current-network of the two modes, the communication mode of the whole network communication can also ensure personal safety of testers and reduce equipment maintenance cost.
8) Line simulator h:
the simulator is mainly used for simulating all trackside resources in a real line environment of the vehicle-to-vehicle communication TACS, including tracks, annunciators, turnouts, platform doors, trackside buttons of related stations and the like. The simulator simulates the state of the trackside resource and related logic, receives an object control command sent by the target controller and simulation thereof, realizes code bit control of the simulated trackside equipment, and feeds back the state of the trackside equipment to the target controller and simulation thereof in real time.
9) Authentication manager i:
the device is an integrated management platform for testers, and has the functions of equipment state monitoring, trackside resource control and system state information recording and checking. Through the man-machine interaction interface provided by the platform, a tester can monitor the state of the simulated trackside resources in the line simulator h in real time, and can send control code bits through the target controller simulation g, so that the dispatching and control of the simulated trackside resources are realized. Meanwhile, the platform also provides an information recording function of the system state, a tester can analyze the testing process and the testing result at any time and any place by calling the corresponding state record of the system, the testing quality of the system is improved, and the working efficiency is ensured.
The scheme is adopted by a verification platform of the train control system of the train communication TACS at present, focuses on the simulation linkage verification of a target controller of the train control system of the train communication, can realize the function test and scene verification of the train control system project of the train communication, and provides related personnel training for users and the like.
Example 2
As shown in FIG. 2, the diagram shows a target controller simulation linkage verification method of a train control system of a train communication TACS, wherein a dark part is real system equipment of the target controller, and a light part is simulation of the target controller. The technical scheme comprises the following steps:
step 1: and starting and initializing a trackside control unit, a trackside target control unit and a trackside simulation unit in sequence from the top layer of the verification system. The track side control unit comprises a track side resource controller WRC, a safety computer platform CVC-200T and a CVC type simulation interlocking CVC-CITB, the track side target unit comprises a target controller OC and a target controller simulation OC Sim, and the track side simulation unit comprises a Line simulator Line Sim.
Step 2: and establishing a TACS mode of vehicle communication, and ensuring normal communication among subsystems.
Step 3: in the car mode, resources are allocated to the target controller OC and the target controller emulation OC Sim by the trackside resource controller WRC.
Step 4: after receiving the track side resource allocation instruction from the track side resource controller WRC, the target controller OC and the target controller simulation OC Sim calculate a control instruction corresponding to the track side resource object through the internal processor, and send the instruction to the Line simulator Line Sim.
Step 5: the Line Sim of the Line simulator responds to the control instruction of the trackside resource in the TACS mode, and changes the code bit corresponding to the simulated trackside resource.
Step 6: in the backup mode, the resource allocation role is changed from a trackside resource controller WRC to a safety computer platform CVC-200T and a CVC type simulation interlocking CVC-CITB, and the steps of resource allocation, object control and equipment response are kept consistent with the car mode.
Aiming at the function verification of the target controller of the train control system of the communication TACS of the rail transit vehicle, the embodiment overcomes a plurality of adverse factors of the prior verification mode, and provides a cost-controllable, integrated, efficient and expandable target controller simulation linkage verification scheme from the perspective of system simulation.
While the invention has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (5)
1. The simulation linkage verification system of the target controller in the TACS system is characterized by comprising a trackside control unit, a trackside target control unit and a trackside simulation unit which are sequentially connected; the trackside control unit comprises a trackside resource controller WRC, a safety computer platform CVC-200T and a CVC type simulation interlocking CVC-CITB, the trackside target control unit comprises a target controller OC and a target controller simulation OC Sim, and the trackside simulation unit comprises a Line simulator Line Sim;
the target controller OC is respectively connected with the trackside resource controller WRC and the safety computer platform CVC-200T, and the target controller simulation OC Sim is respectively connected with the CVC type simulation interlocking CVC-CITB and the trackside resource controller WRC; the Line simulator Line Sim is connected with the target controller OC through the conversion module, and the Line simulator Line Sim is connected with the target controller simulation OC Sim;
the conversion module comprises a relay box and a programmable logic controller; the target controller OC, the relay box, the programmable logic controller and the Line simulator Line Sim are sequentially connected;
the programmable logic controller receives a 24V voltage level control signal sent by the target controller OC through the relay box and sends a response signal of the Line simulator Line Sim to the target controller OC;
the trackside resource controller WRC respectively performs data interaction with the target controller OC and the target controller simulation OC Sim through FSFB/2 and RSSP-I protocols;
the track side resource controller WRC issues track side resource allocation instructions to the target controller OC and the target controller simulation OC Sim, and monitors and collects corresponding track side equipment states in real time through the target controller OC and the target controller simulation OC Sim;
the target controller OC receives a scheduling instruction sent by a trackside resource controller WRC or a safety computer platform CVC-200T, and controls the trackside equipment state in the form of outputting control code bits through interlocking internal Boolean logic operation; meanwhile, the state code bits corresponding to the trackside equipment are collected and sent to a trackside resource controller WRC or a safety computer platform CVC-200T after internal logic operation;
the target controller simulation OC Sim is a simulation device of the target controller OC, and the control of the trackside equipment and the acquisition of the code bits of the related equipment are realized by writing the logic in the real target controller into a simulation program, so that reasonable allocation and safety and stability of trackside resources are ensured;
the Line simulator Line Sim simulates the state and related logic of the trackside resource, receives an object control command sent by the target controller OC or the target controller simulation OC Sim, realizes the code bit control of the simulated trackside equipment, and feeds back the trackside equipment state to the target controller OC or the target controller simulation OC Sim in real time.
2. The simulated linkage verification system of a target controller in a TACS system according to claim 1, wherein the system further comprises a verification manager having a device status monitoring function, a trackside resource control function, a system status information recording and viewing function; the verification manager is respectively connected with the target controller OC and the Line simulator Line Sim;
and the human-computer interaction interface of the verification manager is used for monitoring the state of the simulated trackside resources in the Line Sim in real time, and sending control code bits through the target controller simulation OC Sim to realize the dispatching and control of the simulated trackside resources.
3. The simulation linkage verification system of a target controller in a TACS system according to claim 1, wherein the safety computer platform CVC-200T performs dispatching and distribution of trackside resources instead of a trackside resource controller WRC under abnormal conditions of a vehicle-to-vehicle communication mode, and realizes functions of controlling turnout, handling routes and lighting a signal machine under a backup mode.
4. The simulation linkage verification system of the target controller in the TACS system according to claim 1, wherein the CVC type simulation interlocking CVC-CITB is a CITB type CVC simulation interlocking lower computer platform, internal logic of the safety computer platform CVC-200T is written into a simulation program, and a track side resource scheduling and distributing function is realized by replacing a track side resource controller WRC in a backup mode.
5. A method for a simulated linkage verification system for a target controller in a TACS system according to claim 1, comprising the steps of:
step 1: starting and initializing a trackside control unit, a trackside target control unit and a trackside simulation unit in sequence from the top layer of the verification system;
step 2: establishing a TACS mode of vehicle communication, and ensuring normal communication among subsystems;
step 3: in the vehicle mode, resources are distributed to a target controller OC and a target controller simulation OC Sim through a trackside resource controller WRC;
step 4: after receiving the track side resource allocation instruction from the track side resource controller WRC, the target controller OC and the target controller simulation OC Sim calculate a control instruction corresponding to the track side resource object through the internal processor, and send the instruction to the Line Sim;
step 5: the Line Sim of the Line simulator responds to the control instruction of the trackside resource in the TACS mode, and changes the code bit corresponding to the simulated trackside resource;
step 6: in the backup mode, the resource allocation role is changed from a trackside resource controller WRC to a safety computer platform CVC-200T and a CVC type simulation interlocking CVC-CITB, and the steps of resource allocation, object control and equipment response are kept consistent with the car mode.
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